Old Indian Defense Intermediate Puzzle (Rated 943): Win Material — Tactical Refutation
This Old Indian Defense puzzle is a classic middlegame tactical refutation where one active piece becomes the target of a forcing sequence. The key idea is to notice when a defended-looking piece is actually vulnerable because it is overextended, pinned, or tied to another weakness. Here, White can convert a positional edge into decisive material gain by exploiting the loose black knight and the overloaded back rank structure around the queen and rook coordination.